Dose-area product measurements in a range of common orthopaedic procedures and their possible use in establishing local diagnostic reference levels
Dose-area product measurements in a range of common orthopaedic procedures and their possible use in establishing local diagnostic reference levels
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DOI：
10.1259/bjr.73.871.11089466
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发表时间：
2000-07-01
影响因子：
2.6
通讯作者：
Rogers, AT
中科院分区：
文献类型：
--
作者：
Crawley, MT;Rogers, AT
为了优化患者剂量，正在开展一项全国性的运动，以建立放射学程序的参考剂量。此外，2000年5月13日，确定诊断参考水平剂量成为所有医院的法定要求。然而，到目前为止，几乎没有关于矫形外科手术中透视操作所致患者辐射剂量的公开数据。分析了1997-1998年间在一系列外科矫形手术中接受透视检查的492名患者的有关患者剂量的数据。中位剂量-面积乘积(DAP)读数和四分位数范围为各种常见的透视矫形手术提出。一般来说，四肢手术的BAP中位数很低(0.04-1.62Gycm(2))，筛查时间在0.2-2.0min之间，而髋部和脊柱手术的DAP中位数相当高(0.4-10.2Gycm(2))，尽管总体筛查时间相似，在0.2-1.4min。估计了大约的有效剂量。对于四肢和四肢的手术，有效剂量一般在10微西弗以下，而对于髋部和脊柱的手术，发现有效剂量可以上升到1毫西弗左右。计算了每个程序的集体剂量，以确定局部剂量减少战略程序的优先顺序。
There is a national drive towards establishing reference doses for radiological procedures with the aim of optimizing patient doses. Furthermore, the establishment of diagnostic reference level doses became a legal requirement for all hospitals on 13 May 2000. However, to date there are little published data on patient radiation doses from fluoroscopic procedures during orthopaedic surgery. Data relating to patient dose for 492 patients undergoing fluoroscopic examinations during a range of surgical orthopaedic procedures in 1997-1998 have been analysed. Median dose-area product (DAP) readings and interquartile ranges for a variety of common fluoroscopic orthopaedic procedures are presented. In general, the median BAP for procedures on limbs and extremities was quite low (0.04-1.62 Gy cm(2)), with screening times in the range 0.2-2.0 min, whilst for procedures involving the hips and spine the median DAP was considerably higher (0.4-10.2 Gy cm(2)), although overall screening times were similar, in the range 0.2-1.4 min. Approximate effective doses have been estimated. For procedures involving the limbs and extremities, the effective dose was generally less than 10 mu Sv, and for procedures involving the hips and spine it was found that the effective dose could rise to about 1 mSv. Collective doses for each procedure have been calculated to inform prioritization of procedures for local dose reduction strategies.